Error 0x8024004F

Value: -2145124273 | 0x8024004F | 2149843023

What does it mean ?

WU_E_IDLESHUTDOWN_OPCOUNT_DISCOVERY   
A discovery call contributed to a non-zero operation count at idle timer shutdown.
Value: 79 | 0x004F | 0b0000000001001111

Where does it come from ?

FACILITY_WINDOWSUPDATE  
Windows update
Value: 36 | 0x024 | 0b00100100

Other Errors for FACILITY_WINDOWSUPDATE